No magenta frames in the New Sizing build, Fat32, see what I did:
Format card on camera 600D (remove ML)
Remove card from camera and insert on computer
Copy ML 2.3 Stable to card and remove from computer
Insert card on camera and start Firmware update on camera
Reboot camera and check if ML installed ok
removed card from camera and insert on computer
copy the new bin and new directories from New Sizing build
defragmented the card
removed card from computer and insert on camera
global off, 1920x1080@24p, sraw
reboot camera
load modules, set resolution 960 x 544, hacked off
first record, 1GB file, magenta frames happens
second and third record, 1GB each no magenta frames
turn camera off, and on again
first record, magenta frames happens
second and third record, no magenta frames
Everything points to a fresh format and install to avoid magenta frames.
It seems it works better also in defragmented card with all free space.
Is it a free space allocation issue?